[media] stv0367: Remove an unused parameter

cab_state->modulation is initialized with a wrong value:

drivers/media/dvb-frontends/stv0367.c:3000:42: warning: mixing different enum types
drivers/media/dvb-frontends/stv0367.c:3000:42:     int enum fe_modulation  versus
drivers/media/dvb-frontends/stv0367.c:3000:42:     int enum stv0367cab_mod

as it was declared as "enum stv0367cab_mod". While it could be fixed,
there's no value on it, as this is never used.

So, just remove the modulation from cab_state structure.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>

drivers/media/dvb-frontends/stv0367.c

@@ -59,7 +59,6 @@ struct stv0367cab_state {
 	int locked;			/* channel found		*/
 	u32 freq_khz;			/* found frequency (in kHz)	*/
 	u32 symbol_rate;		/* found symbol rate (in Bds)	*/
-	enum stv0367cab_mod modulation;	/* modulation			*/
 	fe_spectral_inversion_t	spect_inv; /* Spectrum Inversion	*/
 };
 
@@ -2997,7 +2996,6 @@ enum stv0367_cab_signal_type stv0367cab_algo(struct stv0367_state *state,
 
 	if (QAMFEC_Lock) {
 		signalType = FE_CAB_DATAOK;
-		cab_state->modulation = p->modulation;
 		cab_state->spect_inv = stv0367_readbits(state,
 							F367CAB_QUAD_INV);
 #if 0